Riboflavin-5-Phosphate (Active B2)
Solid evidence for migraines. Not a miracle worker, but genuinely useful for the right person.
Verdict
7/10 Solid
Evidence
Grade B / 100+ Studies
The No-BS Summary
8 things. 60 seconds. Everything you need.
WHAT IT DOES
Ready-to-use B2. Migraine preventive.
DOES IT WORK?
7/10 Solid. Good pick. Active form of vitamin B2. Better absorbed than riboflavin. Strong evidence for migraine prevention at high doses.
HOW MUCH TO TAKE
100-400mg for migraines
COST
Mid-range. $35-50/month. Standard for most people.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Give it 4-8 weeks for full effects. Patience pays.
SAFETY
Safe for most people. No red flags at normal doses.
HOW IT FEELS
Fewer migraines. Bright yellow pee.
QUICK ANSWERS
+ 4 more questions
DOSE-RESPONSE CURVE
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